7140SA35JI

Memory IC Overview

The Renesas Electronics Corporation 7140SA35JI is an asynchronous dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 8 kilobits, organized as 1K words by 8 bits. The device features a parallel interface with a maximum access time and write cycle time of 35 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 52-lead Plastic Leadless Chip Carrier (PLCC) package measuring 19.13mm x 19.13mm. The component is rated for commercial operating temperatures between 0°C and 70°C.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate processors or systems.

Memory IC Applications

• High-speed data buffering in communication equipment.

Memory IC Procurement Notes

Verify the exact suffix designation against official manufacturer documentation, as variations exist. Confirm RoHS compliance status, as some variants are non-compliant. Check current production status, as this series may be discontinued. Ensure the specific package type matches the design requirements before procurement.

Memory IC Selection Notes

Select this component when a small-capacity, high-speed dual-port memory solution is required for parallel bus architectures. Verify that the 35ns speed meets system timing constraints. Ensure the 52-PLCC package fits the available PCB real estate and soldering capabilities.

Memory IC Part Context

This part belongs to the 7140SA family of asynchronous dual-port SRAMs manufactured by Renesas Electronics. These devices are designed for applications requiring fast, independent read/write operations from two ports without complex arbitration logic.

Memory IC Replacement Considerations

Consult official datasheets for pin-compatible alternatives within the same family. Verify electrical specifications and package dimensions match exactly before substitution.